<template>
  <el-form ref="deptForm" :model="form" :rules="formRules" label-width="120px">
    <el-form-item label="部门名称" prop="name">
      <el-input v-model="form.name" style="width:80%" placeholder="1-50个字符" />
    </el-form-item>
    <el-form-item label="部门编码" prop="code">
      <el-input v-model="form.code" style="width:80%" placeholder="1-50个字符" />
    </el-form-item>
    <el-form-item label="部门负责人" prop="manager">
      <el-select v-model="form.manager" style="width:80%" placeholder="请选择">
        <el-option
          v-for="item in list"
          :key="item.id"
          :value="item.username"
          :label="item.username"
        />
      </el-select>
    </el-form-item>
    <el-form-item label="部门介绍" prop="introduce">
      <el-input v-model="form.introduce" style="width:80%" placeholder="1-300个字符" type="textarea" :rows="3" />
    </el-form-item>
    <el-form-item>
      <el-button type="primary" size="small" @click="hSubmit">确定</el-button>
      <el-button size="small" @click="hCancel">取消</el-button>
    </el-form-item>
  </el-form>
</template>

<script>
import { getEmployeesSimples } from '@/api/employees'
import { addDepartments, getDepartmentsDetail, updateDepartment } from '@/api/departments'
export default {
  props: {
    id: {
      type: String,
      required: true
    },
    isEdit: {
      type: Boolean,
      required: true
    },
    originList: {
      type: Array,
      required: true
    }
  },
  data() {
    // 检验编码唯一性
    const validCode = (rule, value, callback) => {
      let existCodeList = this.originList.map(item => item.code)
      // 如果是编辑的状态,将当前编辑的部门的编码从存在的数组中移除,然后再判断
      if (this.isEdit) {
        existCodeList = this.originList.filter(item => item.id !== this.id).map(item => item.code)
      }
      // 判断当前value值是否在数组中存在
      if (existCodeList.includes(value)) {
        // 存在 校验失败
        callback(new Error(`该部门${value}已存在,请换一个编码`))
      } else {
        callback() // 不存在 校验通过
      }
    }
    // 检验部门名称唯一性
    const validName = (rule, value, callback) => {
      let existNameList = this.originList.filter(item => item.pid === this.id).map(item => item.name)
      // 编辑时找兄弟的处理
      if (this.isEdit) {
        // 只能获取当前编辑部门的id,获取到当前编辑部门的pid
        const pid = this.originList.find(item => item.id === this.id).pid
        // 通过pid去所有的部门数据中找当前编辑部门的所有兄弟
        const brothers = this.originList.filter(item => item.pid === pid)
        // 排除自己
        existNameList = brothers.filter(item => item.id !== this.id).map(item => item.name)
      }
      // 判断当前value值是否在数组中存在
      if (existNameList.includes(value)) {
        // 存在 校验失败
        callback(new Error(`该部门${value}已存在,不能重复`))
      } else {
        callback() // 不存在 校验通过
      }
    }
    return {
      list: [], // 存储部门负责人列表
      // 收集表单数据对象
      form: {
        name: '',
        code: '',
        manager: '',
        introduce: ''
      },
      formRules: {
        name: [
          { required: true, message: '部门名称不能为空', trigger: 'blur' },
          { min: 1, max: 50, message: '部门名称要求1-50个字符', trigger: 'blur' },
          { validator: validName, trigger: 'blur' }
        ],
        code: [
          { required: true, message: '部门编码不能为空', trigger: 'blur' },
          { min: 1, max: 50, message: '部门编码要求1-50个字符', trigger: 'blur' },
          { validator: validCode, trigger: 'blur' }
        ],
        manager: [
          { required: true, message: '部门负责人不能为空', trigger: 'change' }
        ],
        introduce: [
          { required: true, message: '部门介绍不能为空', trigger: 'blur' },
          { min: 1, max: 300, message: '部门介绍要求1-300个字符', trigger: 'blur' }
        ]
      }
    }
  },
  // 侦听组件内props中属性或者data中属性的变化
  watch: {
    id: function(new_val, old_val) {
      console.log(new_val, 'new_val')
      console.log(old_val, 'old_val')
      // 解决不更新的方法三
      // this.laodDepartmentsDetail()
    }
  },

  created() {
    this.laodEmployeesSimples()
    // 只有是编辑操作才有需要请求详情数据
    if (this.isEdit) {
      this.laodDepartmentsDetail()
    }
  },

  methods: {
    // 子组件重置表单方法
    resetForm() {
      this.$refs.deptForm.resetFields()
    },
    // 实现部门编辑
    async doEdit() {
      try {
        await updateDepartment(this.form)
        this.$emit('success')
      } catch (error) {
        console.log(error)
      }
    },
    // 获取部门详细数据  渲染
    async laodDepartmentsDetail() {
      try {
        const res = await getDepartmentsDetail(this.id)
        console.log('getDepartmentsDetail---res', res)
        this.form = res.data
      } catch (error) {
        console.log(error)
      }
    },
    // 获取部门负责人
    async laodEmployeesSimples() {
      try {
        const res = await getEmployeesSimples()
        console.log('getEmployeesSimples---res', res)
        this.list = res.data
      } catch (error) {
        console.log(error)
      }
    },
    // 实现添加子部门
    async doAdd() {
      try {
        const res = await addDepartments({ pid: this.id, ...this.form })
        console.log('addDepartments-----res', res)
        // 子传父--->> // 重新渲染// 关闭弹窗
        this.$emit('success')
      } catch (error) {
        console.log(error)
      }
    },
    hSubmit() {
      this.$refs.deptForm.validate(valid => {
        if (!valid) return
        // this.isEdit ? '编辑' : '新增操作'
        // 新增部门发送请求
        this.isEdit ? this.doEdit() : this.doAdd()
      })
    },
    hCancel() {
      // 关闭弹窗
      this.$emit('close')
    },
    click() {}
  }
}
</script>
